Exporting coordinates of vertices to CSV
You can generate your CSV directly from blender using the script below.
It will generate a semi-colon separated list of coordinates for each vertex in the active mesh.

It requires you to select and set the mesh you want to export as the active object.

import bpy

outputFile = 'C:/someFolder/mesh.csv'

verts = [ bpy.context.object.matrix_world * v.co for v in bpy.context.object.data.vertices ]

csvLines = [ ";".join([ str(v) for v in co ]) + "\n" for co in verts ]

f = open( outputFile, 'w' )
f.writelines( csvLines )
f.close()


Here's how the CSV data looks like when exporting the coordiantes of a default icosphere (2 subdivisions, 42 verts):



0.0;0.0;-1.0
0.7236073017120361;-0.5257253050804138;-0.44721952080726624
-0.276388019323349;-0.8506492376327515;-0.4472198486328125
-0.8944262266159058;0.0;-0.44721561670303345
-0.276388019323349;0.8506492376327515;-0.4472198486328125
0.7236073017120361;0.5257253050804138;-0.44721952080726624
0.276388019323349;-0.8506492376327515;0.4472198486328125
-0.7236073017120361;-0.5257253050804138;0.44721952080726624
-0.7236073017120361;0.5257253050804138;0.44721952080726624
0.276388019323349;0.8506492376327515;0.4472198486328125
0.8944262266159058;0.0;0.44721561670303345
0.0;0.0;1.0
-0.16245555877685547;-0.49999526143074036;-0.8506544232368469
0.42532268166542053;-0.30901139974594116;-0.8506541848182678
0.26286882162094116;-0.8090116381645203;-0.5257376432418823
0.8506478667259216;0.0;-0.5257359147071838
0.42532268166542053;0.30901139974594116;-0.8506541848182678
-0.525729775428772;0.0;-0.8506516814231873
-0.6881893873214722;-0.49999693036079407;-0.5257362127304077
-0.16245555877685547;0.49999526143074036;-0.8506544232368469
-0.6881893873214722;0.49999693036079407;-0.5257362127304077
0.26286882162094116;0.8090116381645203;-0.5257376432418823
0.9510578513145447;-0.30901262164115906;0.0
0.9510578513145447;0.30901262164115906;0.0
0.0;-0.9999999403953552;0.0
0.5877856016159058;-0.8090167045593262;0.0
-0.9510578513145447;-0.30901262164115906;0.0
-0.5877856016159058;-0.8090167045593262;0.0
-0.5877856016159058;0.8090167045593262;0.0
-0.9510578513145447;0.30901262164115906;0.0
0.5877856016159058;0.8090167045593262;0.0
0.0;0.9999999403953552;0.0
0.6881893873214722;-0.49999693036079407;0.5257362127304077
-0.26286882162094116;-0.8090116381645203;0.5257376432418823
-0.8506478667259216;0.0;0.5257359147071838
-0.26286882162094116;0.8090116381645203;0.5257376432418823
0.6881893873214722;0.49999693036079407;0.5257362127304077
0.16245555877685547;-0.49999526143074036;0.8506543636322021
0.525729775428772;0.0;0.8506516814231873
-0.42532268166542053;-0.30901139974594116;0.8506541848182678
-0.42532268166542053;0.30901139974594116;0.8506541848182678
0.16245555877685547;0.49999526143074036;0.8506543636322021